Update app.py

app.py

@@ -104,7 +104,8 @@ class GeminiHandler(AsyncAudioVideoStreamHandler):
             await self.session.send(input=audio_message)
 
     async def emit(self):
-        return await self.audio_queue.get()
+        array = await self.audio_queue.get()
+        return (self.output_sample_rate, array)
 
     async def shutdown(self) -> None:
         if self.session: